Depending on the year and configuration of the attachment locations can vary.

Front bumper

-open the hood.

-under the hood, Unscrew the two screws that secure the top bumper (twisted upside down).

-wrenched the wheel to the side.

-wheel arches take out the caps, Unscrew one screw from the bottom and removed the arch liners (the front part).

-attach the fender liner to the side and Unscrew one screw on each side (spun upwards) holding the corners of the bumper to the wings and remove the clamping plates (first move toward engine, then pull towards you).

-with the assistant pulls the bumper forward from the rails in the wings (look for wires).

-release the connectors on the Parking sensors, fog lights, temperature sensor (if any).

the attachment of the front bumper Mercedes S-Class W221

The scheme of fastening of the front bumper Mercedes S-Class W221

 

 

Rear bumper

⇒Tips for removing bumpers and how to avoid breaking anything..⇐

-open the trunk lid.

-in the trunk remove the rear trim panel and side trim.

-for covering the back panel, below the rear lights, Unscrew one nut on each side.

-the side casings, in the inner part of the wings, Unscrew two screws on each side (likely to interfere with electronic components, you will need to Unscrew).

-Unscrew the six screws (spun upwards) from the bottom (pull the caps not necessary).

-wheel arches take out the caps and removed the wheel arches (rear).

-move the wing flaps to the side and Unscrew one screw on each side (spun upwards) holding the corners of the bumper to the wings.

-with the assistant pulls the bumper back from the rails in the wings (look for wires).

-snap together the connectors of electrical equipment.

the attachment of the rear bumper Mercedes S-Class W221

Diagram of rear bumper Mercedes S-Class W221

 

How to remove front and rear bumper Mercedes S-Class W140

How to remove front and rear bumper Mercedes S-Class W220

How to remove front and rear bumper Mercedes S-Class W222